Question

A block of weight 20 N is pressed against a vertical wall as shown in figure by applying a horizontal
force of the block (g = 10 ms?). If u , = 0.4 then
The least horizontal force required to keep the block in equilibrium is
[ ]
a) 40 N
b) 20 N
c) 10 N
d) 50 N
​(WITH WORKING)​

Answer 1

A block of weight 20N is pushed against a rough vertical wall with a force of F2=40N, coefficient of static friction being 0.5. Another horizontal force of F1 = 15N, is applied on the block in a direction parallel to the wall.

answer is 40 Newtown

Answer 2

A block of weight 20N is pushed against a rough vertical wall with a force of F2=40N, coefficient of static friction being 0.5. Another horizontal force of F1 = 15N, is applied on the block in a direction parallel to the wall.

$answer \: is \: 40 \: Newtown$